Stroker396@APF

iTrader: (18)

The question is with an 01 F-body. What parts would you keep if building a big inch LSx that would transfer over

and what would you sell with the old LS block.

I know that the bolt on accesories stay. But from what I understand an LS1 PCM is not compatible with LS2 coil packs or vice versa. So what should you keep and what should you let go?

And what is the old LS1 worth (approx) without those items? (40K)

KCS

iTrader: (20)

The LSX have 2 things that are incompatible with a LS1 parts:

The first is the timing cover. The LSX needs an LS2 timing cover with the externally mounted cam sensor. The second is the lifter trays. The LSX has 6 head bolts per cylinder and the top headbolts get in the way of the lifter trays. GM sends out special lifter trays with the LSX block that are compatible. Hope that helps.

Stroker396@APF

iTrader: (18)

That does help a bit. I was reading in HPP about a swap of an LS2 into a f-body and how the LS2 coils are incompatible with an LS2 PCM and also how the signal sent to the speedometer is different. I want to figure out the little things that can hang up a build and also which parts are worth keeping from the LS1 or even can be kept.

KCS

iTrader: (20)

Does an LSX need LS2 coils? I'm 99% sure you can use the LS1 coils, ignition, etc. with the LS2 timing cover and cam sensor.

Stroker396@APF

iTrader: (18)

No, but what I am saying is that you need to make sure all the parts you are using are compatible so if you have a LS1 PCM you won't be able to use LS2 coils.

So if starting from a fresh build, you need to consider these thing when it come time to put it in the car and you find out something is not working. I want to feret out these things before I even start.

gojo

iTrader: (12)

https://ls1tech.com/forums/generation-iv-internal-engine/421616-do-i-need-ls2-rear-cover-well-ls2-block.html

Try this thread.

Tiago

iTrader: (27)

valley cover has to be LS2, front cover has to be LS2, everything else can be used.

93TAWicked1

iTrader: (28)

Yep, I'm in the middle of this myself you have to use the LS2 head studs, valley and front cover. Everything else works, although I think the LSX has a different rear cover setup which it comes with.

I'm using the top end minus cam from my 388 MID setup.

KCS

iTrader: (20)

I just don't understand where the LS2 coils came into play when you say you're transfering over to an 01 f-body. Everything in the f-body's LS1 should transfer over except for the few things already mentioned. LS1 ECU-LS2 coil would probably be a question for the electronics forum. Good luck though, I can't wait to see some of the new combos coming out with thisa LSX stuff, especially in october.

Stroker396@APF

iTrader: (18)

Sorry, i was reading an article in the latest issue of HHP about swapping an LS2 into a f-body and this was one of the problems they ran into unexpectedly. So if building and LSx it is good to know that when buying the parts, depending on what you keep from the stock engine. There are a couple of LSx builds going on now, I am interested to see what transfers over, whats gotta go and any hiccups encountered.

Ferocity02

iTrader: (60)

Can you run a 24x reluctor and sensor in the LSx block? If so, then you should in theory be able to run LS1 PCM everything, coils and all.

gojo

iTrader: (12)

[QUOTE=Ferocity02]Can you run a 24x reluctor and sensor in the LSx block? If so, then you should in theory be able to run LS1 PCM everything, coils and all.[/QUOTE
It's not theory. It's been done many times now. The link above has all you need to know for installing an LS2 block. I've done that and recently an LS7 crate engine.